The DOI matches its Crossref record; 21 of the 21 references it cites were found in a registry or an index.
Viscosity of silica
Abstract
Experimental measurements of the viscosity of silica (SiO2) are critically examined; the best measurements show an activation energy of 515 kJ/mole above 1400 °C and 720 kJ/mole below this temperature. The diffusion of silicon and oxygen in silica have temperature dependencies close to that of the high temperature viscosity. Mechanisms of viscous flow and diffusion of silicon and oxygen in silica are proposed that involve motion of SiO molecules. Viscous flow is proposed to result from the motion of line defects composed of SiO molecules At temperatures below 1400 °C the fraction of SiO molecules in line defects changes with temperature. The relaxation of this fraction to an equilibrium value depends on the time. These proposed mechanisms are consistent with experimental measurements of silica viscosity.
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Cites
Williams, M. L., Landel, R. F., & Ferry, J. D. (1955) · Journal of the American Chemical Society · doi:10.1021/ja01619a008 · Cited by 8,083
On the Temperature Dependence of Cooperative Relaxation Properties in Glass-Forming Liquids
Adam, G., & Gibbs, J. H. (1965) · The Journal of Chemical Physics · doi:10.1063/1.1696442 · Cited by 5,836
Viscous Liquids and the Glass Transition: A Potential Energy Barrier Picture
Goldstein, M. (1969) · The Journal of Chemical Physics · doi:10.1063/1.1672587 · Cited by 1,490
Free-Volume Model of the Amorphous Phase: Glass Transition
Turnbull, D., & Cohen, M. H. (1961) · The Journal of Chemical Physics · doi:10.1063/1.1731549 · Cited by 1,299
STRUCTURAL RELAXATION IN VITREOUS MATERIALS*
Moynihan, C. T., Macedo, P. B., Montrose, C. J., Montrose, C. J., Gupta, P. K., DeBolt, M. A., Dill, J. F., Dom, B. E., Drake, P. W., Easteal, A. J., et al. (1976) · Annals of the New York Academy of Sciences · doi:10.1111/j.1749-6632.1976.tb39688.x · Cited by 848
Ito, K., Moynihan, C. T., & Angell, C. A. (1999) · Nature · doi:10.1038/19042 · Cited by 773
Multiplication Processes for Slow Moving Dislocations
Frank, F. C., & Read, W. T. (1950) · Physical Review · doi:10.1103/physrev.79.722 · Cited by 612
Viscosity of liquid silica, silicates and alumino-silicates
Urbain, G., Bottinga, Y., & Richet, P. (1982) · Geochimica et Cosmochimica Acta · doi:10.1016/0016-7037(82)90059-x · Cited by 607
Richet, P., Bottinga, Y., Denielou, L., Petitet, J. P., & Tequi, C. (1982) · Geochimica et Cosmochimica Acta · doi:10.1016/0016-7037(82)90383-0 · Cited by 397
Xue, X., Stebbins, J. F., Kanzaki, M., Millan, P. M., & Poe, B. T. (1991) · UCL Discovery (University College London) · Cited by 283
Metadata
- Authors
- Doremus, R. H.
- Venue
- Journal of Applied Physics
- Publisher
- AIP Publishing
- Published
- 2002-12-15
- Volume
- 92
- Issue
- 12
- Pages
- 7619-7629
- ISSN
- 0021-8979 (ISSN-L)
- 1089-7550
- OpenAlex
- W2077203357
- Cited by
- 340
- References
- 21
- FWCI
- 9.55
- Type
- journal article
- Language
- en
- Open access
- closed
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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